# Personal Preference ### The Pattern Look at this exchange from a cabinet refinishing forum: **Question:** "Looking for a good 2K product for refinishing cabinets." **Response:** "Honestly, this is a personal preference situation. Both are great brands, and you can't go wrong with either. Your best bet is to get a gallon of primer and topcoat for each and test them out to see what YOU like." Then, in the same comment: "Personally, I haven't had a chance to use ICRO, but I have used Renner." Let that sink in. ### The Logical Collapse She declares it a "personal preference situation," then immediately reveals she's never used one of the products being compared. **You cannot have a preference about something you haven't experienced.** That's not preference—that's called speculation. But here's where it gets interesting. In the very next paragraph, she lists actual performance criteria: build quality, durability, catalyzation requirements, and cure time. These are measurable, objective properties with direct workflow and performance implications. If one product is "true 2K" and requires extra cure time, while another doesn't, that's not a matter of taste. That's a functional difference that affects scheduling, labor costs, and final performance. The advice exposes its own contradictions, yet this exact pattern appears thousands of times across every painting forum, Facebook group, and trade discussion that has existed for the past 35 years. ### What "Personal Preference" Actually Does The "personal preference" declaration sounds helpful and feels collaborative, but requires zero actual knowledge to deploy. It sounds reasonable—nobody can argue with preference, and it positions the advisor as open-minded and non-judgmental. You can say "it's personal preference" about any two products without knowing anything about either one. It's unfalsifiable: preferences can't be wrong, so if the product fails, you just preferred the wrong one. The advice transfers the decision burden back to the questioner, who now has less useful information than before they asked. And it protects the advisor altogether—no accountability, no criticism, no need to defend the recommendation. It's the perfect non-answer. ### The Test-and-See Problem "Get a gallon of each and test them out to see what you like" sounds reasonable until you ask the obvious follow-up questions: What are you testing for? What metrics matter? How do you evaluate build versus cure time versus durability against your specific application requirements? What constitutes a valid test? How do you control for variables? Without a framework for evaluation, testing produces feelings, not knowledge. You're not comparing performance characteristics—you're just seeing which one makes you feel more confident, which probably correlates more with marketing, packaging, and price point than actual performance. ### The Real Issue The real issue is that business owners are treating business decisions as personal preferences. Personal preferences belong in your personal life—what ice cream you like, what music you listen to, what color shirt you wear. Business decisions require criteria, testing, and evidence. What products deliver the performance your quality standards require? What tools produce the productivity that your pricing structure depends on? What systems eliminate the callbacks that destroy profitability? **Pros optimize for profit. Hobbyists optimize for personal preference.** When business owners treat business decisions as personal preferences, they're fundamentally confused about what they're doing. They think they're running a business, but they're actually just expressing themselves with expensive products and tools and hoping it works out. You can't optimize preferences. You can only optimize systems based on measured performance. Most painting "businesses" are actually hobbyists with insurance. The industry has low barriers to entry, so people transition from "I painted my own house" to "I run a painting business" without ever shifting their decision-making framework from hobbyist to professional. They buy products based on what they've heard or what feels right, never testing alternatives, don't document performance metrics, have no [Standard Work](https://jackpauhl.gitbook.io/fieldnotes/field-notes/foundations/standard-work) procedures, and treat business decisions as matters of taste. When people don't know how to evaluate something objectively, they redefine it as subjective. When they haven't tested comparatively, they declare comparison unnecessary. When they can't articulate criteria, they dismiss the need for criteria. This isn't limited to coatings. I've heard painters declare that brush selection is "personal preference." That roller covers are "personal preference." That spray techniques are "personal preference" with no regard to the fact that human anatomy and [articulation matter](https://jackpauhl.gitbook.io/fieldnotes/field-notes/application-techniques/articulation-matters). Without objective data, how would you know that cutting in 1 mile (5,280 feet) takes one brush 6.5 hours? The same person, using another brush of the same size, was only able to cut 1,884 feet in 6.5 hours. The higher-performing brush shows approximately 180% higher performance than the other. One brush delivers profitability. The other guarantees you'll work longer for less money. But sure, call it personal preference. If everything is a matter of preference, then nothing can be evaluated, and we're all just choosing based on vibes and inherited assumptions. **That's not professionalism by any measure**—that's tossing a coin. ### The Alternative Nothing I do in my painting business is selected based on personal preference. Every product, tool, and technique either has measurable performance characteristics that align with my workflows and quality standards—or it doesn't. Does this primer have the adhesion profile required for my substrate preparation protocol? Does this brush maintain its edge geometry throughout a 7-foot stroke? Does this roller produce a solid film in 2 or 3 passes? Does this coating system deliver the durability specifications my warranty structure requires? These aren't preference questions. **They're engineering decisions with right and wrong answers** based on testing and documentation. ### The Cost of Preferential Thinking The "personal preference" framework keeps the industry locked in permanent adolescence. If product selection is just preference, then: * Testing becomes unnecessary (just try stuff and see how you **feel**) * Documentation has no value (your preferences won't match mine) * Standards can't exist (who's to say what's better?) * Improvement is impossible (you can't optimize preference) * Knowledge can't transfer (my feelings aren't your feelings) This is how an industry ends up with practitioners who've been painting for 30 years giving advice about products they've never used, recommending workflows they've never tested, and declaring it all a matter of personal preference while wondering why their callbacks never decrease. ### Why This Persists Psychologist Daniel Kahneman identified two modes of thinking: System 1 (fast, automatic, pattern-matching) and System 2 (slow, deliberate, analytical). System 1 produces confident answers by retrieving cached phrases and socially acceptable responses. System 2 actually evaluates evidence, identifies contradictions, and tests assumptions—**but it's effortful and rare**. The "personal preference" response is pure System 1. It feels like thinking because it produces an answer quickly, but it's just pattern-matching to "both brands sound familiar" and outputting advice-shaped language. System 2 would immediately flag the contradiction: "I can't declare preference about something I've never used." But System 1 doesn't detect logical problems—it just repeats what sounds reasonable. **The painting industry runs almost entirely on System 1**. Quick answers, inherited wisdom, cached phrases, social proof. System 2—testing, documentation, comparative analysis, variable elimination—is exhausting. This is why the same patterns reproduce for decades. **System 1 doesn't learn. It just repeats.** ### The Bottom Line "Personal preference" is what people say when they don't know how to make a decision but don't want to admit it. It's the industry's most socially acceptable form of ignorance—and it's witnessed daily. Preferences are for ice cream flavors. Product selection requires criteria, testing, documentation, and evidence. The moment you can articulate why one option outperforms another for specific applications, it stops being a matter of preference and becomes knowledge. The painting industry desperately needs more knowledge and far fewer preferences. **Personal preferences belong in your personal life.**